Rates & Proportions

Rates & Proportions

Learning Target

• I can find the rate of a proportion and apply to real world scenario.

Multiple Choice

Solve the following proportion.

 $\frac{2}{3}=\frac{x}{9}$  

• x = 3

• x = 6

• x = 12

• x = 18

Multiple Choice

Mr. Brown is cooking rice. The package calls for 2.25 cups of water for 1 cup of rice. Mr. Brown only has 2/3 cups of rice. How much water does he need? (use 0.67 for 2/3 cups of rice)

• 3.35 cups of water

• 1.5 cups of water

• 0.67 cups of water

• 1 cup of water

Expedition Work Week

• Water Pollution

• The effects of pollution to the environment.

• How can we solve this issue?

 $\frac{2}{3}=\frac{6}{9}$  

Using the Rate to Make Equivalent Ratios

Equivalent Ratios

• To make equivalent ratios, use the same factor to multiply the numerator and denominator.

•  $\frac{1}{4}$  

• I want to make equivalent ratio/fraction using a factor of 5. What it be?

•  $\frac{1}{4}\ \frac{\times5}{\times5}\$  

Open Ended

Use a factor of your own to make an equivalent ratio of the fraction below.

 $\frac{2}{5}$  

Multiple Choice

Which ratio is equivalent to the one below?


 $\frac{7}{8}$  

•  $\frac{14}{16}$  

•  $\frac{35}{32}$  

•  $\frac{7}{24}$  

•  $\frac{70}{40}$  

Multiple Choice

What factor or rate is being used to generate the equivalent ratios below?


 $\frac{6}{8}=\frac{48}{64}$  

• 10

• 4

• 8

• 6